What is the stem of "cpdd, you are the only one, the whole network has no predecessor"?

Under normal circumstances, if you want to know someone, everyone will say "cpdd, you are the only one, and there is no predecessor in the whole network" to show your determination to get rid of the order. Of course, sand sculpture netizens once again played a vital role here, giving this sentence a funny meaning: "cpdd has no predecessors in the whole network, there are 365 fake photos, and I have everything you want!" .

Historical background:

Cpdd is also called cp Didi, and cp is the abbreviation of the English word "couple", which means "a pair, a pair, an object, a husband and a wife". Dd is the acronym for Didi in Chinese. As an onomatopoeic word, DD can be translated as "punch in, report" and extended to "contact me". In addition, some netizens gave cpdd some funny meanings.